20971097728

Names of 20971097728

• Cardinal: 20971097728 can be written as Twenty billion, nine hundred seventy-one million, ninety-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.0971097728 × 10¹⁰

Factors of 20971097728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 878

Divisors of 20971097728

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 56 64 68 109 112 119 128 136 218 224 238 272 289 436 448 476 544 578 743 763 872 896 952 1088 1156 1486 1526 1744 1853 1904 2023 2176 2312 2972 3052 3488 3706 3808 4046 4624 5201 5944 6104 6976 7412 7616 8092 9248 10402 11888 12208 12631 12971 13952 14824 15232 16184 18496 20804 23776 24416 25262 25942 29648 31501 32368 36992 41608 47552 48832 50524 51884 59296 63002 64736 80987 83216 88417 95104 97664 101048 103768 118592 126004 129472 161974 166432 176834 202096 207536 214727 220507 237184 252008 258944 323948 332864 353668 404192 415072 429454 441014 504016 566909 647896 665728 707336 808384 830144 858908 882028 1008032 1133818 1295792 1376779 1414672 1503089 1616768 1660288 1717816 1764056 2016064 2267636 2591584 2753558 2829344 3006178 3435632 3528112 4032128 4535272 5183168 5507116 5658688 6012356 6871264 7056224 9070544 9637453 10366336 11014232 11317376 12024712 13742528 14112448 18141088 19274906 22028464 23405243 24049424 27485056 28224896 36282176 38549812 44056928 46810486 48098848 72564352 77099624 88113856 93620972 96197696 154199248 163836701 176227712 187241944 192395392 308398496 327673402 374483888 616796992 655346804 748967776 1233593984 1310693608 1497935552 2621387216 2995871104 5242774432 10485548864 20971097728
• Sum of all divisors σ(n): 51254755200
• Sum of proper divisors (its aliquot sum) s(n): 30283657472
• 20971097728 is an abundant number, because the sum of its proper divisors (30283657472) is greater than itself. Its abundance is 9312559744

Bases of 20971097728

• Binary: 10011100001111110011000111010000000₂
• Hexadecimal: 0x4E1F98E80
• Base-36: 9MTNEKG

Squares and roots of 20971097728

• 20971097728 squared (20971097728²) is 439786939917326761984
• 20971097728 cubed (20971097728³) is 9222814896504323766076259172352
• The square root of 20971097728 is 144814.0108138711
• The cube root of 20971097728 is 2757.6578940539

Scales and comparisons

• 20,971,097,728 seconds is equal to 666 years, 42 weeks, 3 days, 55 minutes, 28 seconds.
• To count from 1 to 20,971,097,728 would take you about one thousand, three hundred thirty-three years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20971097728 cubic inches would be around 229.8 feet tall.

Recreational maths with 20971097728

• 20971097728 backwards is 82779017902
• The number of decimal digits it has is: 11
• The sum of 20971097728's digits is 52
• More coming soon!